package breeze.linalg.support
/*
 Copyright 2012 Daniel Ramage

 Licensed under the Apache License, Version 2.0 (the "License")
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */

/**
 * Marker for being able to map the keys and values in a value collection
 * to new values.
 *
 * @author dramage
 * @author dlwh
 */
trait CanMapKeyValuePairs[-From, +K, +A, -B, +To] {

  /** Maps all key-value pairs from the given collection. */
  def map(from: From, fn: ((K, A) => B)): To

  /** Maps all active key-value pairs from the given collection. */
  def mapActive(from: From, fn: ((K, A) => B)): To
}
